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Red Hat Security Advisory 2021-0162-01

Red Hat Security Advisory 2021-0162-01
Posted Jan 18, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0162-01 - XStream is a Java XML serialization library to serialize objects to and deserialize object from XML. Issues addressed include code execution and deserialization vulnerabilities.

tags | advisory, java, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-26217
MD5 | d9296480dea43fdb2055da43de4742be

Red Hat Security Advisory 2021-0162-01

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====================================================================
Red Hat Security Advisory

Synopsis: Important: xstream security update
Advisory ID: RHSA-2021:0162-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0162
Issue date: 2021-01-18
CVE Names: CVE-2020-26217
====================================================================
1. Summary:

An update for xstream is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client Optional (v. 7) - noarch
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch
Red Hat Enterprise Linux Server Optional (v. 7) - noarch
Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch

3. Description:

XStream is a Java XML serialization library to serialize objects to and
deserialize object from XML.

Security Fix(es):

* XStream: remote code execution due to insecure XML deserialization when
relying on blocklists (CVE-2020-26217)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1898907 - CVE-2020-26217 XStream: remote code execution due to insecure XML deserialization when relying on blocklists

6. Package List:

Red Hat Enterprise Linux Client Optional (v. 7):

Source:
xstream-1.3.1-12.el7_9.src.rpm

noarch:
xstream-1.3.1-12.el7_9.noarch.rpm
xstream-javadoc-1.3.1-12.el7_9.noarch.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Source:
xstream-1.3.1-12.el7_9.src.rpm

noarch:
xstream-1.3.1-12.el7_9.noarch.rpm
xstream-javadoc-1.3.1-12.el7_9.noarch.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

Source:
xstream-1.3.1-12.el7_9.src.rpm

noarch:
xstream-1.3.1-12.el7_9.noarch.rpm
xstream-javadoc-1.3.1-12.el7_9.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

Source:
xstream-1.3.1-12.el7_9.src.rpm

noarch:
xstream-1.3.1-12.el7_9.noarch.rpm
xstream-javadoc-1.3.1-12.el7_9.noarch.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2020-26217
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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